Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2020 12 29.  Predictions up to the next  14.0 days:

     Date     Time(NPP) NPP Lat/Lon Date Time(TERRA) TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 12/31/2020   10:38:50   ( -68.44,-161.26) 12/31/2020   10:39:52  ( -68.44,-161.23)    1.02                62
 12/31/2020   11:29:34   (  68.32,   6.21) 12/31/2020   11:29:19  (  68.33,   6.28)    2.99                15
 12/31/2020   12:20:07   ( -67.75, 174.25) 12/31/2020   12:18:56  ( -67.83, 173.33)   39.68                71
 01/03/2021   02:55:45   ( -68.41, -45.44) 01/03/2021   02:56:21  ( -68.40, -45.40)    1.57                36
 01/03/2021   03:46:27   (  68.23, 122.10) 01/03/2021   03:45:48  (  68.23, 122.04)    2.22                39
 01/05/2021   18:22:04   (  68.84, -97.56) 01/05/2021   18:23:15  (  68.69, -96.81)   34.73                71
 01/05/2021   19:12:39   ( -68.37,  70.38) 01/05/2021   19:12:49  ( -68.36,  70.43)    2.27                10
 01/05/2021   20:03:22   (  68.20,-122.10) 01/05/2021   20:02:17  (  68.19,-122.14)    2.05                65
 01/08/2021   10:38:52   (  68.43,  18.74) 01/08/2021   10:39:48  (  68.41,  18.73)    2.56                56
 01/08/2021   11:29:33   ( -68.28,-173.74) 01/08/2021   11:29:18  ( -68.31,-173.76)    3.17                15
 01/08/2021   12:20:05   (  67.52,  -5.49) 01/08/2021   12:18:56  (  67.57,  -6.96)   62.94                69
 01/11/2021   02:55:47   (  68.40, 134.55) 01/11/2021   02:56:16  (  68.41, 134.61)    2.47                29
 01/11/2021   03:46:28   ( -68.25, -57.94) 01/11/2021   03:45:47  ( -68.25, -57.94)    0.45                41